Queensland's Liberal National Party (LNP) has expelled its candidate for the seat of Cairns, who has been accused of sending an email saying he hopes Prime Minister Julia Gillard "follows the history" of assassinated US president John F Kennedy.

On Monday, Paul Freebody apologised for the email, saying it was changed and sent by a family member without his knowledge or consent.

LNP state director Michael O'Dwyer said the party's state executive had expelled Mr Freebody from the party as a result of the email.

"The LNP expects all candidates and elected representatives to behave with the utmost propriety and to uphold at all times high standards of behaviour, loyalty and integrity," he said in a statement.

"The LNP views any act of disloyalty and improper conduct by a candidate as a gross breach of the party's standards."

The email sent to dozens of people last Friday from Mr Freebody's email account takes aim at the Gillard government over the proposed carbon tax.

"I see Gillard and (Greens leader Bob) Brown as the most evil people we have ever had in power in our country," the email said.

"We can only hope that she follows the history of JFK."

Mr Freebody initially claimed the email had been doctored and provided what he said was an original copy of the email showing the letters KMR, apparently referring to former prime minister Kevin Rudd, in place of the JFK reference.

"Categorically, I never said that. I said she should get the same treatment she gave Kevin Rudd," he said.

However, on Monday he admitted that email had never been sent and accused an unnamed family member of replacing KMR with JFK without his knowledge.

"It has come to light that the family member has admitted to making an adjustment," he told reporters in Cairns.

"It was an attempt to be humorous, nothing more. There was no malice whatsoever meant and the person involved wants to make it known that he intended no offence to the Prime Minister."

Mr O'Dwyer said the party had reopened nominations for the seat of Cairns.

The LNP has high hopes of winning the seat, currently held by retiring Labor minister Desley Boyle with a margin of 4.2 per cent, at the next election, due in March 2012.

Moscow's words and actions — including the alleged poisoning of a former spy — are not the results of random aggression but rather fall into distinct patterns that can help us anticipate Russia's next moves under Vladimir Putin.